我正在尝试将ShowcaseView (v5.2.3) 集成到应用程序中,但是当我尝试定位操作栏菜单项时,应用程序崩溃并出现运行时异常消息“ insertShowcaseViewWithType cannot be used when the theme has no ActionBar ”。该活动绝对有一个带有菜单项的操作栏。这发生在 Android v5.1.1 和 v4.4.2 上
崩溃的堆栈跟踪如下...
java.lang.RuntimeException: insertShowcaseViewWithType cannot be used when the theme has no ActionBar
at com.github.amlcurran.showcaseview.targets.ActionBarReflector.getHomeButton(ActionBarReflector.java:43)
at com.github.amlcurran.showcaseview.targets.ActionBarReflector.getActionBarView(ActionBarReflector.java:36)
at com.github.amlcurran.showcaseview.targets.ActionItemTarget.setUp(ActionItemTarget.java:49)
at com.github.amlcurran.showcaseview.targets.ActionItemTarget.getPoint(ActionItemTarget.java:43)
at com.github.amlcurran.showcaseview.ShowcaseView$1.run(ShowcaseView.java:176)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
应用程序模块 build.gradle 如下...
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "com.d60402.myappname"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.0'
compile 'com.github.amlcurran.showcaseview:library:5.2.3'
}
我的活动如下...
package com.d60402.myappname;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import com.github.amlcurran.showcaseview.ShowcaseView;
import com.github.amlcurran.showcaseview.targets.ActionItemTarget;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu
getMenuInflater().inflate(R.menu.main_menu, menu);
boolean ret = super.onCreateOptionsMenu(menu);
ActionItemTarget target = new ActionItemTarget(this, R.id.action_settings);
new ShowcaseView.Builder(this)
.setTarget(target)
.setContentTitle("Settings menu")
.setContentText("Tap here to view and set the app settings")
.hideOnTouchOutside()
.build();
return ret;
}
}
main_menu.xml 如下...
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item android:id="@+id/action_settings"
android:title="@string/action_settings"
android:orderInCategory="100"
app:showAsAction="always|withText"/>
</menu>
AndroidManifest.xml 如下...
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.d60402.myappname" >
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme" >
<activity android:name=".MainActivity" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
而styles.xml如下...
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
</resources>